Unit Affiliation: Seismology, Geology and Tectonophysics, Lamont-Doherty Earth Observatory (LDEO)
Models of crustal growth will be tested and deep plumbing of active volcanoes will be monitored through the application of new seismic imaging tools. Analysis will build on receiver function analysis techniques. This will provide V and Vp data.
OUTCOMES: Found remarkably uniform crust thickness in the Aleutians, and some disagreement between Vp/V ratios. Found strong returns from 3-4 stations surrounding Akutan Island which likely represents a magma chamber of crystal mush zone. Found that sampling geometries coupled with rock fabrics in peridotites cause anisotropy to masquerade as low Vp/V ratios which suggests that Vp/V may provide an additional constraint with anisotropy in inferring mineralogy. One journal publication.
Asthenospheric Melting and Melt-induced Evolution of the Lithosphere Beneath the Colorado Plateau and the Basin and Range from a Seismic Characterization of Mantle Layering
Climate Change, Weathering and Ocean Chemistry from U-Series Comminution Dating in the Gulf of Aqaba
Collaborative Research: Integrated Studies of Early Stages of Continental Extension: from Incipient (Okavango) to Young (Malawi) Rifts
Collaborative Research: Investigating Temperature, Melting, and Mantle Flow in the North American Upper Mantle with 3-D Models of Shear Velocity, Radial Anisotropy, and Attenuation